A 105km road loop in the Chilterns, with 1,439m of climbing.
- Distance
- 105 km
- Elevation
- 1,439 m
- Terrain
- Challenging Climbing, Steep Ramps
- Type
- Road loop
Start and finish: Near Woodcote, Oxfordshire
About this route
This route was designed by the organisers of the Hardest 100 Chilterns Beast, not by London Dynamo.
Sportive routes change from year to year, and this page follows the route file we hold. The Hardest 100 Chilterns Beast ran on 27 June 2021 and 17 July 2022. We have not found a later edition.
On the route
The Hardest 100 Chilterns Beast was a sportive in the Chilterns, and the Medium was one of its shorter distances. This route is a loop of about 105km with four notable climbs between 34km and 84km, and several short steep ramps.
The route measures 105km with 1,439m of climbing, which gives it a Terrain label of Challenging. Its notable climbs are listed below.
This page is for riding the route outside the sportive, on your own or with friends. There are no organised feed stops, so plan your food and water for the day.
Event names and logos belong to their owners and are shown for identification only. London Dynamo is not affiliated with these events.
Notable climbs
- Climb near 34km: 4.8km at 3.1% average.
- Climb near 56km: 4km at 3.6% average.
- Climb near 62km: 1.5km at 6.9% average.
- Climb near 82km: 2.8km at 4.5% average.
- Steep ramps: 250m at 10.1% average (c. 76km), 275m at 11% average (c. 90km), and 150m at 12.2% average (c. 96km).
Route map and GPX
To download the GPX or TCX file, open the route on Strava with View on Strava below the map, choose the three dots menu, then Export GPX or Export TCX. A free Strava account is needed. Route checked against Strava on 27 October 2026.